A Carbonaceous Chondrite Based Simulant of Phobos

In support of an ESA-funded concept study considering a sample return mission, a simulant of the Martian moon Phobos was needed. There are no samples of the Phobos regolith, therefore none of the four characteristics normally used to design a simulant are explicitly known for Phobos. Because of this...

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Bibliographic Details
Published in:Earth and Space 2016
Main Authors: Rickman, D., Patel, M., Pearson, V. K., Wilson, S., Edmunson, J.
Format: Conference Object
Language:unknown
Published: American Society of Civil Engineers 2017
Subjects:
Online Access:https://oro.open.ac.uk/56339/
https://doi.org/10.1061/9780784479971.054
Description
Summary:In support of an ESA-funded concept study considering a sample return mission, a simulant of the Martian moon Phobos was needed. There are no samples of the Phobos regolith, therefore none of the four characteristics normally used to design a simulant are explicitly known for Phobos. Because of this, specifications for a Phobos simulant were based on spectroscopy, other remote measurements, and judgment. A composition based on the Tagish Lake meteorite was assumed. The requirement that sterility be achieved, especially given the required organic content, was unusual and problematic. The final design mixed JSC-1A, antigorite, pseudo-agglutinates and gilsonite. Sterility was achieved by radiation in a commercial facility.